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20289+2436
BKO 578 AB

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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20289+2436 BKO 578 AB

20^h 28^m 53.57^s +24° 35' 43.6" P.A. 355.00 sep 4.2 mag 13.40,14.20

Coord 2000	20289+2436	Discov num	BKO 578	Comp	AB	Coord arcsec 2000	20 28 53.57 +24 35 43.6
Date first	2001	Date last	2015	Obs	3
Pa first	354	Pa last	355.4	P.A. Now (θ)	355.4°
Sep first	4.2	Sep last	4.188	Sep. Now (ρ)	4.188"
Mag pri	13.40	Mag sec	14.20	delta mag (ΔM)	0.8	Spectral class
Pri motion ra	-012	Sec motion ra	-037
Pri motion dec	-036	Sec motion dec	+025
Notes

rPM=1.476

This double is not physical.

20289+2436 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20 28 54 +24 35 44	BKO 578 AB	2015	3	355	4.2	13.40	14.20	0.80		<===
Show			20 28 54 +24 35 48	BKO 578 BC	2008	1	260	1.3	14.20	14.50	0.30

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Vulpecula

Gaia DR2

1831639591373129856

WDS 20289+2436 BKO 578 AB : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Bko2002	C -	Ladanyi, T. & Berko, E.	...................
Bko2002		Webb Soc., Double Star Circ. 10, 2002
Bko2003	C u	Ladanyi, T., Berko, E. & Vaskuti, G	...................
Bko2003		Webb Soc., Double Star Circ. 11, 2003
Bko2004	C u	Berko, E., Ladanyi, T. & Vaskuti, G	...................
Bko2004		Webb Soc., Double Star Circ. 12, 2004
Bko2005	C u	Berko, E., Ladanyi, T. & Vaskuti, G	...................
Bko2005		Webb Soc., Double Star Circ. 13, 2005
Bko2008	C u	Berko, E. & Vaskuti, G.	...................
Bko2008		Webb Soc., Double Star Circ. 16, 2008
Bko2008b	C u	Berko, E.	2008JDSO....4..144B
Bko2008b		JDSO 4, 144, 2008
Bko2009	C u	Berko, E.	2009JDSO....5...49B
Bko2009		JDSO 5, 49, 2009
Bko2009b	C u	Berko, E.	2009JDSO....5..168B
Bko2009b		JDSO 5, 168, 2009
Bko2009c	C u	Berko, E.	...................
Bko2009c		Webb Soc., Double Star Circ. 17, 2009
Bko2009d	C u	Berko, E.	2009JDSO....5..189B
Bko2009d		JDSO 5, 189, 2009
Bko2010a	C u	Berko, E.	2010JDSO....6...21B
Bko2010a		JDSO 6, 21, 2010
Bko2010b	C u	Berko, E.	...................
Bko2010b		Webb Soc., Double Star Circ. 18, 2010
Bko2011a	C u	Berko, E.	2011JDSO....7....2B
Bko2011a		JDSO 7, 2, 2011
Bko2011b	C u	Berko, E.	...................
Bko2011b		Webb Soc., Double Star Circ. 19, 29, 2011 (BKO 898 - BKO 980)
Bko2011c	C u	Berko, E.	...................
Bko2011c		Webb Soc., Double Star Circ. 19, 42, 2011 (BKO 981 - BKO1042)
Bko2012	C u	Berko, E.	...................
Bko2012		Webb Soc., Double Star Circ. 20, 2012

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20289+2436	BKO 578	AB	2008	1	0	4.1	13.40	14.20			202853.56+243545.3
20289+2436	BKO 578	AB	2015	3	355	4.2	13.40	14.20			202853.57+243543.6

If you need more information about this double, apply for a data request form to the WDS.

WDS 20289+2436 BKO 578 AB : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20289+2436 BKO 578 AB : MEASURES

No records found.

WDS 20289+2436 : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 20289+2436 : ALADIN DSS IMAGE @ 20^h 28^m 53.57^s +24° 35' 43.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20289+2436 BKO 578 AB : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		20289+2436	BKO 578	AB	355	4.2
Show		20289+2436	BKO 578	BC	260	1.3	1
Show		20291+2433	POU4521	AB	327	6.5	4
Show		20291+2433	BKO 581	AC	180	3.9	4
Show		20293+2437	BKO 583		137	6.9	6
Show		20290+2430	BKO 579		163	8.2	7
Show		20290+2429	BKO 580		56	9.7	8
Show		20291+2429	BKO 582		142	7.8	8
Show		20294+2435	BKO 584		266	5.4	8
Show		20297+2442	POU4529		261	10.6	13
Show		20300+2438	POU4534		346	14.6	16
Show		20299+2444	BKO 588		213	1.1	17
Show		20299+2445	BKO 587		220	4.3	17
Show		20291+2452	POU4522		165	12.8	17
Show		20301+2443	BKO 590		225	9.0	18
Show		20291+2453	POU4523		140	16.8	18
Show		20279+2421	POU4509		280	9.0	20
Show		20303+2441	POU4537		319	16.7	20
Show		20280+2418	BKO 576		31	7.2	22
Show		20299+2453	POU4532		195	17.5	23
Show		20280+2416	POU4511		196	17.8	24
Show		20280+2456	POU4512		268	13.4	24
Show		20277+2454	POU4504		67	15.7	25
Show		20268+2436	POU4499		44	7.3	29
Show		20278+2411	TDT2295		29	2.8	29
Show		20280+2503	POU4510		356	13.9	30
Show		20311+2429	BKO 450	BC	291	1.4	31
Show		20306+2417	POU4544		229	18.0	31
Show		20311+2429	POU4553	AB	282	12.8	31
Show		20298+2504	POU4531		212	8.2	32
Show		20286+2404	KU 59	AB	141	32.9	32
Show		20312+2442	POU4555		218	7.9	32
Show		20276+2502	BKO 575		349	3.7	32
Show		20286+2404	KU 59	BC	316	4.3	32
Show		20305+2411	POU4539		220	20.7	33
Show		20282+2507	BKO 577		209	8.6	33
Show		20308+2416	POU4547		249	22.7	34
Show		20298+2507	BKO 586		287	4.6	34
Show		20280+2508	POU4513		39	7.2	34
Show		20269+2416	POU4501		135	16.4	34
Show		20302+2506	POU4536		110	6.4	36
Show		20311+2455	POU4550		284	14.0	36
Show		20281+2510	POU4514		93	17.0	37
Show		20267+2415	BKO 447	BC	109	6.8	37
Show		20267+2415	POU4497	AB	106	6.6	37
Show		20301+2509	BKO 589		84	5.2	37
Show		20306+2406	POU4542		59	16.2	38
Show		20314+2421	POU4563		36	3.5	39
Show		20316+2428	POU4566		162	12.5	39
Show		20294+2514	POU4527		208	13.8	39
Show		20264+2415	BKO 446		352	5.6	40

WDS 20289+2436 : COMPONENTS

	A	B
B	pa=356.1° sep=4.01"
C	pa=338.9° sep=4.03"	pa=258.6° sep=1.20"

20289+2436 A

Coord arcsec 2000

202853.57+243543.6

Mag

13.4

PmRA

-12.00

PmDE

-36.0

20289+2436 B

Coord arcsec 2000	202853.55+243547.6		Coord calc	202853.55+243547.6		Mag	14.2		PmRA	-37.00
PmDE	25.0		Calc delta mag	0.8

20289+2436 C

Coord arcsec 2000

202853.46+243547.4

Mag

14.5

Calc delta mag

1.1

Calc coord

yes